Engine-CodesGMC – P1392 GMC

P1392 GMC Code - Wheel Speed Sensor 1 G-Sensor Circuit Low Voltage

Quick Answer

The P1392 GMC code refers to a Wheel Speed Sensor 1 G-Sensor Circuit Low Voltage issue. Common causes include Damaged or corroded wiring leading to the wheel speed sensor, A faulty wheel speed sensor, Issues with the electronic control module. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1392 GMC indicates Wheel Speed Sensor 1 G-Sensor Circuit Low Voltage.
Common causes
Common causes include Damaged or corroded wiring leading to the wheel speed sensor, A faulty wheel speed sensor, Issues with the electronic control module.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1392 GMC Description

The P1392 GMC code refers to a Wheel Speed Sensor 1 G-Sensor Circuit Low Voltage issue. This means that the vehicle's onboard computer has detected a problem with the wheel speed sensor 1 G-sensor circuit, indicating that there is a lower voltage than expected. The wheel speed sensor is responsible for monitoring the speed of each wheel and providing crucial data to the vehicle's ABS (anti-lock braking system) and traction control system.

OBDII Code P1392 GMC - Wheel Speed Sensor 1 G-Sensor Circuit Low Voltage
P1392 GMC Code - Wheel Speed Sensor 1 G-Sensor Circuit Low Voltage

Common Causes of P1392 GMC

  1. Damaged or corroded wiring leading to the wheel speed sensor
  2. A faulty wheel speed sensor
  3. Issues with the electronic control module
  4. Poor electrical connection at the sensor
  5. Sensor misalignment or physical damage

Symptoms of P1392 GMC

  1. Illumination of the ABS or traction control warning light on the dashboard
  2. Erratic ABS activation or pulsation in the brake pedal
  3. Traction control system engaging unexpectedly
  4. Loss of traction or stability while driving

How to Fix P1392 GMC

  1. Begin by visually inspecting the wiring harness and connections leading to the wheel speed sensor for any signs of damage or corrosion.
  2. Test the wheel speed sensor using a multimeter to check for proper voltage output.
  3. If the sensor is faulty, replace it with a new one following manufacturer guidelines.
  4. Ensure proper alignment and mounting of the wheel speed sensor.
  5. Clear the diagnostic trouble codes from the vehicle's computer and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P1392 GMC

The typical repair costs for a Wheel Speed Sensor 1 G-Sensor Circuit Low Voltage issue can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the cost of parts for this repair can range from $100 to $300, while labor costs can add an additional $100 to $200. It's important to note that diagnostic time and labor rates at auto repair shops can vary based on location and other factors. It's recommended to consult with a professional mechanic for a more precise estimate based on your vehicle's make and model.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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